Bad service.

I ordered a meal on uber eats from Mcdonalds when I received the meal, I opened the package infront of the delivery guy and I realized there is one meal short, we had 3 drinks but only 2 meals. I asked the delivery guy about this and his exact words were 'I dont do the packaging'. I tried contacting the restaurant but no answer, I sent a complaint through Uber eats but have not received any feedback.